baber/WOPTO huggingface dataset:
Patent GB-699797-A (GB)
Title: Improvements in or relating to closed feed systems for steam power plants
IPC: F01K9/02
Filed: 1950-05-11
Abstract: 699,797. Feedwater supply systems for steam boilers. WEIR, Ltd., G. & J., and HILLIER, H. May 11, 1950, No. 11757/50. Class 123 (ii) A closed feedwater supply system for a steam power plant including a boiler and turbine, not shown, comprises, in series, a steam condenser 1, a condensate extraction pump 3 discharging through pipes 4, 17 to a deaerator 16, and a de-aerator extraction pump 28 discharging through a pipe 14 to the boiler feed pump 11. Both the pumps 3, 28 have recirculation connection 6, 7, 9 and 31 respectively to the condenser 1 and de-earator 16, the flows through the pipes 9, 31 being regulated by valves 8, 32 which are controlled by floats 10, 33 in the condenser well 2 and de-aerator tank 25 and are opened and closed at predetermined low and high water levels in said well and tank. The pipe 17 is also provided with a valve 18 controlled by a float 19 in the de-aerator tank 25, so that the flow from the condenser pump to the de-aerator is reduced when the level in the said tank rises, and vice versa; if desired, the valves 18 and the valve 32 may be operated by a common float. The system is completed by an elevated feed tank 5, which is in free connection by the pipe 6 with the condenser pump discharge pipe 4, and by a by-pass pipe 13 with non-return valve 12 between said pipe 4 and the supply pipe 14 of the feed pump 11. The capacities of the pumps 3, 28 are greater than that of the pump 11 so that in normal operation there is a recirculation of water through both the condenser and the de-aerator, and, should either of these pumps fail, then the pump 11 may draw water from the tank 5. Two or more such systems may be operated in parallel, the discharges 4A, 14A respectively from the condenser and de-aerator pumps in a second system being shown. A modified system with a low feed tank is also described.
Patent GB-1398958-A (GB)
Title: Easy-opening container end closures
IPC: B65D53/06
Filed: 1973-03-12
Abstract: 1398958 Easy opening container ends CONTINENTAL CAN CO Inc 12 March 1973 [10 March 1972] 11777/73 Heading B8D [Also in Division B2] An easy opening can end has a guard band 23 permanently bonded to the chuck wall 14 to overlie a score line 17 which defines a removable end panel portion 18. The guard band comprises a hot melt adhesive. The can end is coated with a thermoplastic and/or thermosetting resin 16 and a release coating 25 is provided between the resin coating 16 and the hot melt adhesive band 23. The under surface of the end panel 15 may have a resin coating 30, a release coating 33 and a hot melt adhesive guard band 31 permanently bonded to the removable end panel portion 18 to underlie the score line 17. Specific examples of the thermoplastic and thermosetting resins, hot melt adhesives and release coatings are given.
Patent GB-867182-A (GB)
Title: Improvements relating to the catalytic reforming of hydrocarbons
IPC: C10G59/02
Filed: 1957-04-11
Abstract: Fedstocks comprising non-aromatic hydrocarbons (e.g. pure hydrocarbons such as straight-chain paraffines or cycloparaffines a straight-run or cracked petroleum fraction, or a catalytic reformate which is preferably a lower boiling relatively aromatic-free fraction prepared by means of a platinum-alumina catalyst) are dehydrogenated or dehydrocyclised by means of a chromia-alumina catalyst promoted with oxides of either cerium and potassium or iron, nickel or cobalt, the catalyst being used in a fixed, moving or fluidised bed.  The following conditions are preferred: 450-580 DEG C. not more than 50 p.s.i.g. and without recycle of the hydrogen-containing gas produced, and a space velocity of 0,1-1,0 v/v/hr.  Specification 833,577 is referred to.ALSO:A promoted chroma-alumina catalyst prepared as described in Specification 833,577 is used in the dehydrogenation or dehydrocyclisation of essentially non-aromatic feedstocks.  The catalyst may be used in a fixed, moving or fluidised bed and is regenerated by burning off carbonaceous deposits in a stream of oxygen-containing gas.
Patent GB-500512-A (GB)
Title: Improvements in or relating to a closure boot for a joint
IPC: F16C11/06
Filed: 1938-04-20
Abstract: 500,512. Stuffing - box substitutes ; ball joints. CHICAGO RAWHIDE MANUFACTURING CO. April 20, 1938, No. 11862. Convention dste, Mav 17, 1937. [Class 122 (v)] [Also in Group XXV] A closure boot, fur a ball-and-socket joint in motor car steering gear, comprises a flexible sleeve 19 secured to one part 16 of the joint and rotatably mounted at its other end in a ring 20 secured to the other part of the joint. A metal ring 38 may be secured to the end of the jacket and slidably youuted in a groove in the ring 20. The fixed end of jacket may be secured in a ring 24 pressed on member 16 or in a ring 40 having an intmued portion engaging a groove 44 in said member. Alternatively it may be secured by a clamping band. The jacket may be in one or two parts and of leather or moulded rubber-like material.
Patent GB-377234-A (GB)
Title: Improvements in or relating to electric glow discharge tubes
IPC: H01J61/28
Filed: 1931-04-22
Abstract: 377,234. Discharge lamps. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and BRETT, G. F., 23, Cross Flatts Avenue, Dewsbury Road, Leeds. April 22, 1931, No. 11956. [Class 39 (i).] Nitrogen is evolved in a glow-discharge tube having a filling including nitrogen by heating a powdered material which is made to adhere to a small piece of nickel or other suitable foil or wire dropped into the tube before the exhausting process. Powdered barium azide or sodium azide is made to adhere to the foil by moistening the latter with shellac solution. The nitrogen may be evolved gradually due to the heat generated by the discharge, or may be evolved rapidly after a period of use by the external application of heat.
Patent GB-111092-A (GB)
Title: Improved Starting Apparatus for Motor Car Internal Combustion Engines.
IPC: F02N1/02
Filed: 1917-08-21
Abstract: 111,092. Akt.-Ges. Brown, Boveri, et Cie. Nov. 6, 1916, [Convention date]. Addition to 106,820. Turning-gear.-In a turning-gear operable by hand or by an electric motor through clutches b, k as described in Specification 106,820, the starting-motor f is arranged in front of the starting-gear case o concentrically with the hand cranking-up shaft d. The armature is mounted on a hollow shaft l enclosing the shaft d and having a gear wheel g, which drives a gear-wheel m through gearing h, i. The wheel m carries the clutch member k, and for electric starting it is moved axially by an electro-magnet e, bringing both clutches into engagement. For hand starting, the shaft d carrying the clutch member c is moved axially to couple it to the engine shaft.
Patent GB-552811-A (GB)
Title: Improvements in or relating to baking compositions
IPC: A21D2/14
Filed: 1941-09-19
Abstract: 552,811. Organic aluminium salts. IMPERIAL CHEMICAL INDUSTRIES, Ltd. (Du Pont de Nemours & Co., E. I.). Sept. 19, 1941. No. 12041. [Class 1 (iii)] [Also in Group VI and IV] An edible self-condensation product of hydroxyacetic acid having a melting point between 120‹ and 200‹C., some or all of the carboxyl groups of which have had their hydrogen replaced by a metal which forms an edible salt therewith, e.g. aluminium, is used in baking powders. The acid may be condensed by heating at 170‹ to 210‹C. at a pressure between 760 mm. and 10 mm. for one to five hours. In an example, the acid is heated at 175‹C. for one hour in a flask connected to a condenser while nitrogen is bubbled slowly therethrough, the pressure is then reduced to 100 mm. for 10 minutes and finally, to 75mm. for twenty minutes at a temperature between 175‹ and 180‹C., the products having melting points ranging from 168‹ to 173‹C. The condensed acid is neutralized or partially neutralized by reaction with carbonate, oxide, hydroxide or a soluble salt, e.g. acetate or hydroxyacetate, of the metal at a temperature between 170‹ and 210‹C. for half an hour to two hours, the product being cooled and ground. Specification 550,539, [Group VI], is referred to.
Patent GB-121924-A (GB)
Title: A New or Improved Cigarette Making Device or Contrivance.
Inventor: PRICE ABRAHAM
IPC: A24C5/42
Filed: 1918-07-24
Abstract: 121,924. Price, A. July 24, 1918. Cigarette. - making appliances. - T w o overlapping s e g - mental sliding sections d, d' for receiving the tobacco k and cigarette paper p are provided with guide-pins e arranged to slide in longitudinal slots b in a casing a which is fitted with a core rod c to prevent the tobacco from being drawn into the casing when the slides are withdrawn one at a time.
Patent GB-412382-A (GB)
Title: Improvement in variable inductance devices
IPC: H01F21/06
Filed: 1933-04-25
Abstract: 412,382. Inductances. JOHNSON LABORATORIES, Inc., 609, West Lake Street, Chicago, U.S.A.-(Assignees of Polydoroff, W. J. ; 420, Fullerton Parkway, Chicago, U.S.A.) April 25, 1933, No. 12098. Convention date, May 4, 1932. [Class 37.] A high-frequency inductance having an adjustable core of finely divided magnetic particles has the coil constructed in conical form for the purpose of imparting a straightline tuning characteristic. The core which may be correspondingly tapered consists of an outer shell 1 and a tapered inner plug 2 leaving a gap 7 between them, into which gap the tapered winding 8 on sleeve 9 engages, the core material having greater magnetic density towards its larger end. The parts 1, 2 are made separately and united at 5. The relative movement between coil and core may provide an inductance variation proportional to the square of the linear displacement. Moulds for making the parts comprise shaped shells into which plungers are inserted for compressing the magnetic particles. Specifications 366 475, 403,368, and 403,426 are referred to.
Patent GB-666284-A (GB)
Title: Improvements in power-propelled hoe cultivators
IPC: A01B11/00
Filed: 1949-06-06
Abstract: 666,284. Agricultural implements. RANSOMES, SIMS & JEFFERIES, Ltd., and HENDERSON, W. M. Sept. 6,1950 [June 6, 1949; Aug. 19, 1950], Nos. 12143/49 and 20598/50. Class 6(i) A motor driven hoe comprises a pair of hoe blades 17. 21 which are reciprocated in the direction of travel of the machine, each blade being provided with a chain 25 which is fitted loosely to the rear of the blade and which performs a whipping action during the reciprocatory movements of the blade. As shown, the blades are reciprocated in out of phase relationship by a powerdriven crank attached to a connecting rod 7 pivoted on an extension 10 of a blade attachment member 15. Intermeshing gear sectors 22, 23 operatively connect the blades 17 and 21.
Patent GB-418148-A (GB)
Title: Improvements in fuse mechanism for projectiles
IPC: F42C9/02
Filed: 1933-04-26
Abstract: 418,148. Projectile fuzes. SCHWOB FRERES ET CIE SOC. ANON., La Chaux-de- Fonds, Switzerland. April 26, 1933, No. 12211. Convention date, April 30, 1932. [Class 9 (i).] In a clockwork fuze for artillery projectiles, a regulator device with dead-beat escapement 7, 9 is used in combination with centrifugal driving mechanism 3, 4. Specification 235,843, [Class 9 (i)], is referred to.
Patent GB-580809-A (GB)
Title: Improvements in the manufacture of titanium pigments
IPC: C09C1/36
Filed: 1943-07-27
Abstract: Rutile titanium dioxide pigments of improved brightness and tone are prepared by hydrolysing a titanium sulphate solution by a method described in Specifications 513,867 and 542,579, and incorporating with hydrous pulp prior to calcination a compound of silicon, zirconium, or thorium (or mixtures of such compounds) in the following proportions, calculated on the dry weight of titanium dioxide:-silicon 0.02-0.5 per cent (as SiO2), zirconium 0.1-2.0 per cent. (as ZrO2), thorium 0.05-1.0 per cent. (as ThO2).  Preferred portions are 0.2-0.4 per cent for silicon, 0.5-1.0 per cent. for zirconium, and 0.1-0.5 per cent. for thorium.  The elements may be added as their oxides or in the form of soluble compounds such as an alkali silicate (e.g. potassium silicate) or a salt of zirconium or thorium (e.g. thorium nitrate).  Conventional conditioning agents such as potassium carbonate may also be added.  Specifications 392,194, 499,153, and 517,742 also are referred to.
Patent GB-704784-A (GB)
Title: Improvements in or relating to the mixing of materials
IPC: B01F15/02
Filed: 1951-05-25
Abstract: 704,784. Mixing appliances. BRITISH UNITED SHOE MACHINERY CO., Ltd., PRATT, J. W., ELLIOTT, H. E., and SMITH, F. R. May 26, 1952 [May 25, 1951], No. 12256/51. Addition to 677,929. Class 86 [Also in Group XVIII] An improvement in or modification of the powder measuring means in the mixing machine of the parent Specification consists in a measuring chamber 4 having a central cylindrical portion 8, and end portions 14, 16 of frustoconical shape leading to openings 10, 12 through which the powder may flow, and a cylindrical valve member 20 on a shaft 18 movable along the chamber to close each opening in turn by engagement with the adjacent frusto-conical end portion of the chamber. The cylinder 20 normally rests in the lower position, in which powder from the hopper 2 will have filled the space around the cylinder. To deliver a measured quantity of powder through the opening 12 into the mixing machine the shaft 18 is quickly raised to bring the upper edge of the cylinder 20 against the conical portion 14.
Patent GB-1369309-A (GB)
Title: Lifting mechanisms
IPC: B60P1/34
Filed: 1973-02-14
Abstract: 1369309 Lifting and tipping trailer J WAREING & SON (WREA GREEN) Ltd 14 Feb 1973 [16 March 1972] 12318/72 Heading B8E A trailer with a body 18 has a support frame 10 pivoted thereto at 28 through curved extensions 24 and a sub-frame 30 pivoted to the frame 10 at 32 together with a lever 38 in turn pivotally connected at 54 to an hydraulic or pneumatic tipping ram 56 pivotally connected at 58 to the body 18 and the lever 38 is pivoted at 40 to a joist 42 rigidly secured to the subframe 30. A ram 46 is pivotally connected at 44 to the joist 42 and at 48 to the frame 10. From the towing position in which the frames 10 and 30 are substantially horizontal actuation of the ram 46 will act on the linkages to raise the body to an elevated position while remaining horizontal. Actuation of the ram 56 will tip the body about the pivot 28 either in the elevated or any intermediate position. In a modified embodiment the lever 38 is pivotally connected to the frame 10 at a separate pivot nearer the towing connection and its end is pivotally connected to the joist 42 through an additional rod.
Patent GB-684582-A (GB)
Title: An improved machine for the moulding of thermosetting and thermoplastic materials
IPC: B29C48/85
Filed: 1950-05-17
Abstract: 684,582. Mixing aplliances. HENDRY, J. W. May 17, 1950 [May 18, 1949], No. 12362/50. Class 86 [Also in Groups V and XXX] A mixing device that delivers hot plastic material to a chamber whence it is injected into a mould (see Group V) comprises a screw 40 working in a cylinder 4 fed by a hopper 28. The screw consists of a main part 41 having a thread of decreasing pitch and a short second thread 43, and an end part 42 having a pitch equal to the smallest pitch of the part 41. The end part 42 is screwed into the main part, and may be replaced by a part having a constant pitch greater than the smallest pitch of part 41 or by a part having a decreasing pitch. The chamber consists of three tubular sections 5, 6, 7, and an end block 10 all of which are heated by electrical means 100. The parts 5 and 7 are cooled by liquid channels 109, 105. A nozzle 32 is cooled by channel 114. The hopper is cooled by means of a spiral jacket 106.
Patent GB-417470-A (GB)
Title: Improvements in perpetual calendars
IPC: G09D3/08
Filed: 1933-04-28
Abstract: 417,470. Calendars. ANDERSONS, EDINBURGH, Ltd., and ANDERSON, D. A. P., 33, Montgomery Street, Edinburgh. April 28, 1933, No. 12378. [Class 106 (iv).] A perpetual calendar has the date numbers arranged around an opening on a member a and the day names on a disc c rotatable in the plane of the opening. A particular-date indicator f is pivoted co-axially with the disc c. A set of cards g showing the month names may be provided in a pocket b. Alternatively, the month names may be carried on a disc pivoted behind the part b and showing in turn through a slot. The date numbers 29-31 may be covered by a folding member (not illustrated) when desired.
Patent GB-1010166-A (GB)
Title: Improvements in or relating to starting barriers, such as for horse racing
IPC: A63K3/02
Filed: 1964-03-24
Abstract: 1,010,166. Starting carriers for horse races. March 24, 1964 [April 4, 1963], No. 12425/64. Heading A6D. A starting carrier for horse races, of the kind which moves slowly along the track prior to the start of the race, is mounted for movement along tracks 3 each comprising a horizontal portion 3a and a rising portion 36. As illustrated, the barrier may be mounted on endless belts 5a and 5b driven from an electric motor 9, the speed of movement of the barrier along the portion 3a of the track being controlled by the starter in box 11 until switch 12 is tripped by the barrier, when the starter loses control of the carrier and the latter rises at full speed to allow the runners to pass thereunder. Alternatively, the carrier may be moved by means of weights suspended over posts 14a and connected by cables to the carrier, or by means of elastic elements connected between the posts 14a and the barrier and acting to urge the barrier towards the posts. In the latter two alternatives, brakes are provided to control the initial horizontal progress of the carrier, and switch 12 is replaced by a trigger to release the brakes.
Patent GB-1509665-A (GB)
Title: Arrangement including a gas and/or vapour discharge lamp
IPC: H05B41/04
Filed: 1976-03-29
Abstract: 1509665 Automatic current control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 March 1976 [1 April 1975] 12469/76 Heading G3R [Also in Division H1] A discharge lamp with a ballastless supply has two main electrode systems. The current in the lamp is stabilized by an auxiliary circuit which varies the space charge potential drop near one or both the electrode systems in such a way as to oppose changes in the current. The auxiliary circuit switches a second current path to one of the electrode systems so as to change its effective area or temperature. As shown in Fig. 1, a low-pressure sodium vapour discharge lamp 1, nominally rated at 90 watts, has an anode 5 and pre-heatable cathode 7 connected to D.C. supply terminals 2, 3. A resistor 4 and current level detector 4a are connected in parallel between terminal 2 and anode 5. The lamp is initially ignited by high frequency, high voltage pulses, and the relatively low discharge current results in relay contacts 8, 10 being closed, so that a cylindrical auxiliary anode 6 is connected to D.C. terminal 2, and heating current is supplied to the cathode 7. If the lamp current exceeds a given upper level, the detector 4a opens the contacts 8, 10 and the current falls until a lower level is reached, when the contacts will again be closed. The current may thus be maintained between 0À85 and 0À95 amps. In an A.C. embodiment, Fig. 2 (not shown) a single pre-heatable electrode is provided at each end of the lamp. Heating current is supplied by transformers, each of which has a primary winding connected in series with a contact controlled by a current level detector. Another A.C. embodiment, Fig. 3 (not shown), uses non-pre-heatable electrodes surrounded by auxiliary cylindrical electrodes connected through controlled contacts. This arrangement produces increased current in an anode phase and decreased emission during a cathode phase, resulting in an overall current reduction when the auxiliary electrodes are in circuit.
Patent GB-1342958-A (GB)
Title: Phase coherent receivers
IPC: H03J7/04
Filed: 1971-05-03
Abstract: 1342958 Parametric amplifiers LICENTIA PATENT-VERWALTUNGS GmbH 3 May 1971 [23 July 1970] 12656/71 Heading H3B Anon-reciprocal parametric preamplifier PPA, Fig. 1, is pumped by the frequency doubled output of a voltage controlled oscillator VO phase locked to the preamplifier output. The pump frequency is thus twice that of the input signal to the preamplifier. In Fig. 1 the preamplifier output passes to a phase detector PD where it is compared with the output of oscillator VO: a control voltage is derived from filter CH to phase lock the oscillator. The oscillator frequency is doubled by multiplier FM to pump the preamplifier. The basic technique is stated to be known, the invention residing in the use of a non-reciprocal parametric device, preferably a diode up-converter and a diode down-converter pumped in different phases and having the feedback admittance neutralized, Fig. 2 (not shown), and in the use of a frequency multiplication of two. It is shown that the signal to noise ratio at the preamplifier output is some 9 dB better than at its input.
Patent GB-455924-A (GB)
Title: Improvements in absorption or adsorption refrigerators
IPC: F25B17/08
Filed: 1935-04-29
Abstract: 455,924. Refrigerating. COLE, Ltd., E. K., Priory Crescent, Southend-on-Sea, and CAPPS, A. W., Kingswood, Gaywood, Kings Lynn. April 29, 1935, No. 12701. [Class 29] Absorption machines and systems.-An absorption or adsorption apparatus for a cabinet comprises a generator-absorber 1, condenser 3, and liquid refrigerant reservoir 4, and is provided with a closed cooling-water circuit including a heat-exchanger 5 in the generatorabsorber and a cooler 11 encircling the condenser. The circulation pipe between the upper end of the heat-exchanger and the cooler is provided with an expansible valve 10 subjected to the pressure in a boiler 7, communicating also with the heat-exchanger through a pipe including an orifice plate 14, and heated by an electric element 8, the current supply to which is controlled by a switch disposed in the generator-absorber and operated by a thermostat in contact with the lower part of the heat-exchanger. During generation, the valve 10 is closed and steam flows into the upper part of the heatexchanger thus forcing the water therefrom into an expansion vessel connected to the cooler 11. When the water level falls below the position of thermostat, the current to the element 8 is interrupted and the consequent fall of pressure in the boiler results in the opening of the valve 10 and the thermosyphonic circulation of the cooling water through the heat-exchanger 5 and initiation of the absorption phase of the apparatus. A second switch may be provided to open the heating element circuit when the temperature in the cabinet falls below a predetermined value.